News of the latest pregnancy spread when Zolciak wore a baby bumb-bearing bikini while on vacation in late May. An e-mail to Zolciak's rep was not immediately returned.

Zolciak has two daughters — Brielle, 16, and Ariana, 11 — from a previous relationship, as well as two sons with Biermann — Kroy Jr., 2, and Kash Kade, who was born in August 2012. Zolciak has discussed trying for a baby girl with Biermann on the current season of her Bravo reality series Don't Be Tardy...